Advanced Organic Chemistry - spring 03


Instructor:  R. D. Little  (office – 3649 C/D of PSBN; e-mail: little@chem.ucsb.edu)
Office hour:  Tuesday, 3-4 pm and by appointment.  e-mail: little@chem.ucsb.edu
Tentative time/place:  MWF, 8-8:50 am in Phelps 1160.  This may change.  Stay tuned.

Important dates:  instruction begins – Monday, March 31; Memorial Day holiday – Monday, May 26; instruction ends – Thursday, June 5; final exam – Friday, June 13, 8-11 am.

Exams
:  exam 1 – Monday, April 28 [100 pts];  exam 2 – Friday, May 23 [100 pts]; final exam – Friday, June 13, 8-11 am

Problem sets – will appear throughout the quarter and will be posted on the class web page.  Check daily.

Text:  Organic Chemistry by Clayden, Greeves, Warren, and Wothers (Oxford; 2001)
    … and references to the original literature as well as selected web pages.

References
(check regularly for additions throughout the quarter)

... a useful list of references

web addresses dealing with photochemistry - also includes two prob sets.
Beer's law:   http://www.shu.ac.uk/schools/sci/chem/tutorials/molspec/beers1.htm.  A fun chemiluminescence web address:  http://www.shsu.edu/~chm_tgc/chemilumdir/chemiluminescence2.html
some photoreactions

problem set 1 (based upon lecture 1)

solutions to 1st problem set

problem set 2 (based upon lecture 2)

solutions to 2nd problem set

problem set 3 (based upon lecture 3)

problem set 4 (based upon lectures 3 & 4)

solutions to 3rd and 4th problem sets

problem set 5 (based upon lectures 4 & 5)

solutions to problem set 5


problem set 6 (in anticipation of lecture 7 ... try your hand)

solutions to problem set 6

problem set 7 (sigmatropic; electrocyclic; fragmentation; tin-lithium exchange)

page one of solutions to set 7

page two of solutions to set 7

page three of solutions to set 7

problem set 8 (fragmentation/sigmatropic-after 9th lecture)

solutions to set 8

fragmentations - observations and comments

problem set 9 (fragmentation - part 2)

solutions to problem set 9

diyl cleavage conformers (from lecture 11)

problem set 10 (after lecture 11)

solutions to problem set 10

problem set 11 (phenonium)

solutions to preblem set 11

problem set 12 (Arrhenius function; fragmentations; pi character of cyclopropane)

solutions to set 12 [note error in solution set - a lactone is not possible given the need for a trans-diaxial ring opening of the cyclopropane ... thanks to T. Petersen for pointing this out]


problem set 13 (carbenes, carbenoids, carbonyl ylids)

page 1 of solution set 13

page 2 of solution set 13

page 3 of solutions set 3

problem set 14
(Wolff rearrangement; stereochemistry of it and of C-H insertion; FMO analysis of addition to an alkene)

solutions to set 14

scanned material - Z-Traxler, DCC/DMAP coupling, metathesis (RCM); epothilone synthesis

problem set 15

solutions to set 15

solution to extra credit problem of exam 1 (2003)

problem set 16 (carbenes/carbenoids; Bamford-Stevens; temporary Si connection; Tamao-Fleming; radical chemistry; olefin metathesis)

solutions to set 16 (there may be some clipping that occurred when I scanned the solutions)

problem set 17:
photochemistry - some practical considerations

page 1 solutions to exam 1 (some clipping may have occurred during the scanning - on this and the other pages, too)

page 2 solutions to exam 1

page 3 solutions to exam 1

solutions to problem set 17

solutions to exam 2

See (for extra credit problem):  Roser, Christian; Albers, Reinhard; Sander, Wolfram.  Rearrangements of 2-furfurylidenes - synthesis of acylsilanes and acylstannanes.    European Journal of Organic Chemistry  (2001),   (2),  269-273.


problem
set 18 (photochem)

solutions to problem set 18

prob set 19 (interpretation of photochemical experiments)

page 1 of set 19 solutions

page 2 of set 19 solutions

prob set 20 (Stern-Volmer equation)


solutions to problem set 20

Final exam - high = 96, low = 22.  
Undergraduate average on final = 58 (high 87, low 22);
graduate average on final exam = 76 (high 96, low 53).

Undergraduate course average = 63;
graduate course averave 81

page 1 of solutions to final exam

page 2 of solutions to final exam

page 3 of solutions to final exam

page 4 of solutions to final exam

Web page addresses of interest/use to the topics under discussion will be updated throughout the quarter.

chapter    Main topic(s); the order is likely to vary

chapter 32    spectroscopic methods for determination of stereochemistry

chapter 33    stereoselective reactions of cyclic compounds

chapter 37    rearrangements

chapter 38    fragmentations

chapter 40    carbene chemistry

chapter 41    determination of reaction mechanisms

chapter 42    saturated heterocycles; stereoelectronics

    atom transfer processes

    orbital symmetry


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